Cold-adapted animals started to evolve 2.6 million years ago when the permanent ice at the poles became more prevalent. There followed a time when the continental ice sheets expanded and contracted ...

A new study has provided fresh insights into how animals such as the woolly mammoth, musk ox and arctic fox evolved to ...

At least one giant ground sloth has been positively identified, with other bones still being studied by paleontologists.

The extinct mammals were about five times larger than a grizzly bear–and filled caves with their poop.

A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

A routine construction project has turned into a remarkable paleontological discovery as crews working on the TX State ...

PALMER, Alaska (AP) — It is one of Alaska’s favorite Mother’s Day traditions, getting up close and personal with animals that have survived the ice age. All moms get a daisy and free ...

As the last Ice Age came to an end nearly 10,000 years ago, something unexpected happened deep beneath Earth’s surface. Large glaciers began to melt. The sea levels rose quickly—about 1 ...

The oldest perspective looks back 120,000 years, depicting mastodons, Ice Age bison, and Jefferson ground sloths around Ziegler Reservoir during the Pleistocene Epoch. The next viewfinder ...

Here are some of the weirdest and most surprising facts about sloths that you probably ... Ancient, giant ground sloths roamed the Americas. Some reached the size of modern elephants and lived ...

Teachers and other school officials had told them not to worry: ICE was after criminals — not ... Let’s just call them and tell them that our kids were taken and it was a mistake, and we ...

PHOENIX — Every year, hundreds of young people in Arizona age out of foster care ... this might help with that.' It's facts, it's science, and we've seen it time and time again," McGuire ...